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Cation-Selective Reagents for Conservation Treatments

Published online by Cambridge University Press:  28 February 2011

Duane R. Chartier
Duane R. Chartier*
Affiliation:
ConservArt Associates, 826 North Sweetzer Avenue, Los Angeles, CA 90069
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Abstract

Crown ethers, cryptands, polyphenols, and several other reagents are known to have high specificity for various cationic species. These reagents have great potential for application in general conservation problems of selective cleaning, desalination, stain removal and reversal of treatments in conservation. They are remarkably more effective in metal ion complexation than the more common chelates (usually only EDTA is used for conservation applications) which are used generally with little regard for selectivity.

The advantages of a selective reagent are both its minimal effect on other species and its maximal cost-effectiveness. Most of the macrocyclic chelates are noutral specion that are lipophilic and solubilize metal ions (of the correct size) in non-aqueous media as well as water. Therefore, polar organic solvents may be used for water-sensitive treatments.

Research has been designed to assess the use of cationselective materials both in the laboratory and in situ. The potential of these compounds to expand the range and the safe execution of existing and new conservation treatments is excellent.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 185: Symposium G – Materials Issues in Art and Archaeology II , 1990 , 73
Copyright
Copyright © Materials Research Society 1990

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References

1. Prout, W.E., Russell, E.R. and Groh, H.J., Journal of Inorganic Nuclear Chemistry, 27, 473–479 (1965).Google Scholar
2. Kullenberg, Lennart and Clearfield, Abraham, J. Inorg. Nucl. Chem., 43(10), 2543–2548 (1981).Google Scholar
3. Morgan, G.T. and Drew, H.D.K., J. Chem. Soc., 117, 1456 (1920).Google Scholar
4. Werner, A., Anorg, Z.. u. Allgem. Chem., 3, 267 (1893).Google Scholar
5. Plenderleith, H.J., Werner, A.E.A., The Conservation of Antiquities and Works of Art, (Oxford University Press, London, 1979) pp. 251, 272, 289.Google Scholar
6. Mora, Laura and Schwartzbaum, P., Rome, personal communications.Google Scholar
7. Köhn, Hermann, Conservation and Restoration of Works of Art and Antiquities, Volume 1, (Butterworths, London, 1986) pp. 113, 123.Google Scholar
8. Wihr, Rolf, Restaurieren von Keramik und Glas, (Verlag; George D.W. Callwey, Munich, 1977) p. 91.Google Scholar
9. Pedersen, C.J., Science, 241(4865), 536–540 (1988).Google Scholar
10. Doyle, B., Moody, J.R., and Thomas, J.D.R., Talanta, 29(7), 609–614 (1982).Google Scholar
11. Smid, Johannes, Ind. Eng. Chem. Prod. Res. Dev., 19, 364–371 (1980).Google Scholar
12. Cheng, K.L., Ueno, K., and Imamura, T. (eds.), CRC Handbook of Organic Analytical Reagents, (CRC Press, Boca Raton, 1982) p. 134.Google Scholar
13. Izatt, R.M., Lamb, J.D., Swain, C.S., and Christensen, J.J., J. Am. Chem. Soc., 102(2), 475–479 (1980).Google Scholar
14. Gutsche, C. David, Dhawan, Balram, No, Kwang Hyun, and Muthukrishnan, Ramaurthi, J. Am. Chem. Soc., 103(13), 3782–3792 (1981).Google Scholar